Hair wave pad



v 0a. 27, 1942. w F, HUDSON A 2,299,985

HAIR WAVE PAD Filed March 6, 1 942 glwuc/wtom ll l'llz'amflladmza Patented Oct. 27, 1942 UNITED STATES PATENT OFFICE HAIR WAVE PAD William F. Hudson, Philadelphia, Pa. Application March 9, 1942, Serial No. 433,663 (c1. 13236.2)

8 Claims.

This invention relates to improvements in hair wave pads, particularly of the kind adapted for use with mechanical hair waving devices.

Among the objects of the present invention ar to provide a hair wave pad which is free of metallic elements and from use of which there is no danger of scorching hair; a pad which is efiiciently absorbent and capable of absorbing hair waving lotion in fine particles so that less steaming time and less heat are required and a pad which is form retaining and will not melt under the conditions of use thereby eliminating danger of injury to the user from such source; and a pad which is of extremely economical construction.

A particular object of the invention is to provide a pad composed of an absorbent facing sheet and a relatively less absorbent backing sheet having an intermediate layer of moisture resistant adhesive which is thermo-plastic under the conditions of use whereby such adhesive material will block the interstices of the facing sheet at its juncture with the backing sheet and thereby force the steam to escape from the facing sheet downwardly towards the hair. Such an adhesive material thus forms a seal and steam tight coat- 1 ing between the facing and backing sheets and f at the same time holds the two sheets together.

Other advantages of the present invention will be apparent from the following description taken in conjunction with the accompanying drawing wherein a preferred embodiment of the principles of the present invention has been selected for exemplification.

In the drawing:

Fig, 1 illustrates a side elevational view of the general assembly for coiling, clamping and heating the hair;

Fig. 2 is an enlarged fragmentary view of the various laminations forming a pad according to a preferred form of the present invention and separated to more clearly illustrate the same; and

Fig. 3 is a perspective View of the compacted and completed pad of Fig. 2.

Fig. l is illustrative of conventional mechanical apparatus for waving hair wherein the hair may be passed through a base member l and wound around a curler element l2. A hair waving pad l3 as in accordance with the present invention is interposed between the curled hair and a heating clamp I4, with the absorbent facing layer of the pad in engagement with the hair.

The facing sheet iii of my improved hair waving pad may if desired be composed of any suitable absorbent material, preferably cellulosic' material. In one specific embodiment of the invention I use a suitable number of layers, depending upon the thickness desired, of laminated absorbent cellulosic fabric which may be formed principally of cotton fiber and wood pulp and for certain purposes may contain a small percentage of asbestos. Such material is highly absorbent, the interstices thereof are relatively small, is relatively compact and has suflicient tensile strength to permit laminating in wide, large diameter rolls.

The backing sheet 16 may be of any suitable non-absorbent materialior material relatively less absorbent than the facing sheet I5. I have found that kraft paper makes an excellent backing sheet. In one specific embodiment of the invention I employ unwaxed kraft paper in View of its lower cost as compared with the more conventional waxed kraft paper. Unwaxed kraft paper is absorbent to some extent but this is immaterial as will hereinafter be explained.

The facing and backing sheets I5 and I6 are secured together by a preferably coextensive coating I! of moisture resistant adhesive material which is thermo-plastic under the conditions of use of the pad. An excellent adhesive of this character is wax, which has a melting point lower than the temperature required to generate steam and when melted is flowable into the adjacent interstices of the facing and backing sheets thus forming a steam tight coating between the sheets and at the same time holding the sheets together.

The pad herein illustrated and described may be used in the conventional manner of other mechanical hair wave pads in that it is first dipped in the hair waving lotion by the operator and then assembled in the clamp as illustrated in 1. Unlike prior pads, however, the heat applied through the clamp M will first operate to soften and flow the thermo-plastic adhesive coating I! thus forming an impervious coating between the facing and backing sheets. Continued application of heat generates steam from the hair waving lotion with which the facing sheet is saturated and the steam being unable to escape through the backing sheet is forced downwardly into contact with the hair. Meanwhile the facing and backing sheets remain secured together within the clamp and upon cooling the thermo-plastic adhesive solidifies to an extent permitting withdrawal of the pad from the waving apparatus with the facing and backing sheets thereof secured together whereupon the used pad may be thrown away,

While I have found that a thermo-plastic adhesive material may be used with facility in connection with absorbent facing sheets of blotting paper, any cellulosic or other fibrous material, woven material such as flannel or the like, I have secured best results with a facing sheet of the laminated cellulosic fabric herein described in view of its highly absorbent, body retention and non-flaking characteristics. I am aware that kraft backing sheets have heretofore been used but of the relatively greater expensive waxed type. With the impervious adhesive coating employed in my invention the cheaper and more readily available unwaxed kraft paper which is more absorbent than wax coated kraft may be used with equal or greater facility. However, backing sheets of any other material having requisite stiffness and body retention properties, regardless of porosity, may be employed.

It is accordingly understood that the specific embodiment of the invention herein illustrated and described is exemplary only and that the invention contemplates various alterations in details of construction and use of materials as are within the scope of the following claims.

I claim:

1. A hair Wave pad comprising a facing sheet of absorbent material, a backing sheet and an intermediate layer of moisture resistant adhesive securing the sheets together, said adhesive being thermo-plastic under conditions of use of the pad.

' 2. A hair Wave pad comprising a facing sheet of absorbent material, a backing sheet of unwaxed kraft paper, and an intermediate layer of moisture resistant adhesive securing the sheets together, said adhesive being thermo-plastic under conditions of use of the pad.

3. A hair wave pad comprising a facing sheet of absorbent material, a backing sheet, and an intermediate layer of wax securing the sheets tdgether.

4. A hair wave pad comprising a facing sheet of absorbent material, a backing sheet of unwaxed kraft paper, and an intermediate layer of wax adhesive securing the sheets together.

5. A hair wave pad comprising a facing sheet of laminated absorbent cellulosic fabric, a backing sheet, and an intermediate layer of moisture resistant adhesive securing the sheets together, the said adhesive being thermo-plastic under the conditions of use of the pad.

6. A hair wave pad comprising a facing sheet of laminated absorbent cellulosic fabric, a backing sheet of unwaxed kraft paper, and an intermediate layer of moisture resistant adhesive securing the sheets together, said. adhesive being thermo-plastic under conditions of use of the pad.

7. A hair wave pad comprising a facing sheet of laminated absorbent cellulosic fabric, a backing sheet, and an intermediate layer of wax securing the sheets together.

8. A hair wave pad comprising a facing sheet of laminated absorbent cellulosic fabric, a backing sheet of unwaxed kraft paper, and an intermediate layer of wax adhesive securing the sheets together.

WILLIAM F. HUDSON. 

